Machine for driving headed fastenings



(N6 Model.) 3 SheetsSheet 1.

M. BROGK. MACHINE FOR DRIVING HEADED FASTENINGS.

N0..442,418. Patented Dec. 9, 1890.

(No Model.) 3 Sheets-Sheet 2.

M. BROOK.

MACHINE FOR DRIVING DDADDD PASTENINGS.

No. 442,418. Patented Dec. 9, 1890.

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(NoModeL) 3Sheets-Sheet 3.

M. BROOK. MACHINE FOR DRIVING BEADED FASTENINGS.

No. 442,418. Patented Dec. 9, 1890.

NlTED STATES PATENT OFFtoE.

MATTHIAS BROOK, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE MCKAY & COPELAND LASTING MACHINE COMPANY, OF PORTLAND, "MAINE.

MACHINE FOR DRIVING HEADED FASTENINGS.

SPECIFICATION forming part of Letters Patent No. 442,418, dated December 9, 1890.

Application filed August 28, 1890. $eria1 No. 363,280. (No model.)

To all whom it may concern: on it the clutch-pulley F under the control Be it known that I, MATTHIAS BROOK, of of alever f having connected to it a slide- Boston, county of Suffolk, State of Massachurod F. The said shaft has fast on ita grooved setts, have invented an Improvement in Mahub the end of which next the loose pulley chines for Driving Headed Fastenings, of F (see Fig, 6) is notched to be engaged by which the following descripti0n,in connection projections of corresponding shape on the with the accompanying drawings, is a specihub of the said loose pulley when the shaft lication, like letters and figures on the drawa is to be rotated. The hub c actuates a lngs representing like parts. rock-shaft (Z having at its lower end an arm ro This invention has 1' or its object to improve d, which in practice will actuate the feeding 6c and simplify that class of machines adapted devices, as in United States Patent No. to drive headed tacks, my invention being 247,143. The shaft a also carries agrooved more especially adapted to drive tacks into hub o which actuates a lever c", which reps. ciprocates a pusher-slide 0 The drive-rod 0 I5 In accordance with my invention the tacks is attached to a drive-bar c which is actuare fed automatically into a raceway, down ated by the disk o The tack-receiving hopwhich they travel to a supporting-plate, and per is marked a, it containing a tack-lifting thereafter the raceway has imparted to it a wheel and a Wiper or clearing device a to slight lateral vibration to thus cut off or dedislodge from the raceway any tacks improp 2O tach from it the endmost tack, and a pusher erly lodged thereon. 7 then acts on the tack so cut off and pushes it All the parts thus far specifically referred laterally into position to be struck by the to and designated by letters are substantially driver, the supporting-plate being drawn out the same as in the Patent No. 247,1l3. from under the head of the tack just before The wiper a is fast on the end of a short 25 the pusher engages the tack and after the shaft, (not shown,) supported in bearings in raceway has been swung aside, as stated. the hopper, the other end of the said shaft The particular features in which my invenhaving fast on it a pinion a wh ch derives tion consists will be described in the followits motion from a pinion a and intermediate ing specification, and designated in the claims gears a a the pinion a being fast onashaft 3 at the end thereof. a having a bevel-gear (t which is engaged Figure l is a front elevation of a tack-drivand rotated by a bevel-gear a fast on the ingmachine embodying myinvention; Fig. 2, main shaft a. a detail showing the raceway in plan view to- The raceway 1% has at its upper end degether with the supporting-plate and pusher; fleeting-aprons B, on which the wheel B in 3-5 Fig. 3, a plan view of the machine shown in the hopper drops the tackslifted byit. This Fig. 1; Fig. 4, an enlarged partial longitudiraceway, as best shown in Figs. 2 and 3, is nal section of the machine in the line ofthe pivoted at 11 (see dot-ted lines, Fig. 3,) and is center of the raceway; Fig. 5,an enlarged secvibrated at proper times by a link 13*, preftion in the line or, Fig. 2. Fig. 6 is a section erably made adjustable as to its lcngth,which 4 to the left of the line as, Fig. Fig. 7 is an is joined to the upright lever B, pivoted at enlarged detail showingthc stationary throat B, and having aroller or other stud 13 whichlocated at the lower end of the raceway and enters a cam-groove in the canrhub B, fast on which the supportingplat-e slides and in on shaft 0.. The raceway is tapped or, which the pusher slides; and Figs. 8, 9, and jarred by the lever O acted upon by a lug 45 10 are details showing the end of the raceway 2 of the disk or hub C on shaft to, a spring 5 and the supporting plate and pusher in dif- 3 operating the lever in opposition to the ferent positions. said lug. The raceway has a cap 4, which The framework A of the machine is and prevents the tacks properly suspended in the may be of suitable shape to sustain the supraceway from escaping. The lower end of 7 5 porting parts. The main. shaft a ,has loose the raceway rests upon a stand (5, made ad justable on a throat-block D by a screw '7. The delivery end of the raceway has a horizontal notch 8, which is entered by the crowdin g-back finger 10, attached to the throat-block 5 when the raceway is moved laterally from the position in Fig. 8 to that in Figs. 9 and 10, the said fingerat such time acting against the tack nextto the endmost one and pushing back in the raceway all the tacks except the one marked 12, (see Figs. 8 and 9;) which tack during the lateral movement of the raceway is picked off from the raceway by a picker 13, (shown as a stationary prong forming part of the throat-block.) The tack 12, picked off by the picker l3, enters a notch in a supporting-platen, which is reciprocated for a short distance on the throat-block toward and from the end of the raceway by a cam-finger 14 and a spring 15, the said camfinger being connected to the pusher-slide o and acting on a roller-stud 16 on the plate a. The pusher-slide c has attached to it the pnsherm, which moves in the slot m (see Fig. 7) of the throat-block at right angles to the supporting-plate and raceway, the said slot leading toward and being in communication with the passage-way 17, in which descends or moves the drive-rod 0. (Shown in section, Figs. 8 and 9.)

The slotted end of the plate 6 embraces loosely a lug 6, (see Figs. 7 and 8,) against which the tack to be detached or picked off from the raceway abuts as a stop, the prongs of the supporting-plate at such time, as in 5 Fig. 8, extending beyond theface of said lug,

but as the raceway is moved from the position Fig. 8 into the position Fig. 9 the said plate is retracted and its prongs are drawn back of the face of the lug, so that as the pusher m meets the tack 12 it may push it from between the said lug, past the left-hand side of the prong 13, and along the slot m toward the end of the said slot and next the drive-rod O, which is then down, as in Fig. 9, the raceway at such time being swung about its pivot into the position, Fig. 9, it remaining in such position until the drive-bar descends on the tack 12, (see Fig. 10,) and drives it, the drive-bar being lifted out as the tack 12"is brought to the passage-way 17. v

The tack 12 is put into the passage-way 17 directly under the drive-rod as the latter is elevated above the passage 17. The passage-way 17 has slots at each side to receive jaws 20, acted upon by springs 0*, (See Fig. 1,) the said jaws and springs being common to the patent referred to and acting to keep the tack in vertical position while being driven by the ClI'lVG-IOC.

The raceway proper is carried by an arm B having an upright web 22 inclined at its top, as best shown in Fig. 2, to which web the raceway is bolted by bolts 23, extended through slots in the raceway, so that the lat- 6 5 ter may be adjusted longitudinally to always keep its end in proper relation to the pick-off 13. It will be noticed that the finger or prong 24 at the delivery end of the raceway is longer-than the other prong alongside of it, said prong being at the level of theprongs of the supporting-plate, as in Fig. at, so that the tack detached from the raceway will rest on the said plate. Viewing Fig. S,it will be seen that the head of the tack 12 next to be carried away by the pusher rests on the stop 6' and on both prongs of the plate 6, the tackhead being thus supported on three sides. Now as the raceway is swung aside into the position Fig. 9 and the plate 2 is withdrawn the prong 24E of the raceway comes under the head ofthe tack and supports it at its side opposite the stop 6, the head of the tack yet remaining on the said stop. This is "shown in Fig. 9. The raceway-prong 24 remains in the position Fig. 9 until after the pusher m strikes the rear side of the tack12, and when the pusher places the tack in the passage 17 and retires the raceway is turned back into its normal position. The plate e is shown as attached by screws 28 to a plate-carrier slide 6 in which is an adj usting-screw by which to control the forward position of the plate 6.

The throat-block D has a cap-piece 30, attached to it by suitable screws in the threaded holes 31.

The term tack is considered to comprehend any headed nail or fastening.

It will be noticed in my improved machine that the raceway is vibrated laterally and that the pick-off is stationary, which so far as I am aware is novel.

Prior to my invention it has been common to employ a movable pick-off at the end of a stationary roadway.

The plan invented and adopted by me is simpler and more durable than older forms known to me.

This invention is not limited to the exact form of means for moving it laterally back and forth with relation to the plate I e.

I do not claim a longitudinally-reciprocatin g raceway.

Referring to Figs. 1 and 6, n and n represent arms attached to a rock-shaft. The arm n is slotted to embrace a pin 11 on a slide 12 This slide is adapted to co-operate with certain feelers described in a former patent gran ted to me, and need not be herein specifically described.

I cl-aim-- 1 1. In a machine for driving headed fastenings, the following instrumentalities, viz: a laterally-movable raceway, a stop located at the end of the raceway to control the flow of tacks, means to move the raceway back and forth laterally, and an independent pick-01f, tooperate substantially as described.

2. In a machinefor driving headed fastenings, the following instrumentaliti'es, viz: a laterally-movable raceway, a stop located at the end of the raceway to control the flow of tacks, means to move the said raceway back and forth laterally, and a crowding-back device, to operate substantially as described.

3. In a machine for driving headed fastenings, the following instrumentalities, viz: a raceway, means to move it back and forth laterally, a stop (2', a pick-off, and a movable supportingplate having prongs to co-operate with the said stop, substantially as described.

at. The laterallymovable raceway having one of its prongs 2i longer than the other, the stop e, and the movable supporting-plate notched at its forward end to straddle the said stop, combined with a pusher and a throatplate having a driver-passage, and a crowding-back device, to operate substantially as described.

5. The laterally movable raceway, the throat-block having the pick-off, the stop 6, and the movable supporting-plate notched to 

